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3597 is similar to 37x0/34x0: Diagnostics Page>Diagnostic Logging>Start Recording>Check 'GPX', then press top LH corner (the 3 bars)>Start. The counter appears on the map page. You may also consider using pedestrian mode as suggested by Angelozip, and disabling the 'lock on road' by using off-road mode.

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Yes, for your 3790 / 3490 only. You can only set the 3597 on 'Off Road' in Car mode.

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Sorry not writing immediately about my trip results.
3790T - first 200 km. - perfect accuracy - 7 to 15 m. But then, after a tunnel passage, the accuracy gone. The unit returns to it's bad accuracy performance of average 15 to 30-40 meters and not revive to better one despite restarts and cold start. I have a clue why, but for time being cannot say more, because in my anger I left the unit to a friend saying to him:
It's yours for any tests. If you can find the reason why it is behave like this I will give you the unit for free.

I'm still waiting the results.
The only reason 3790 to behave like this in my opinion is that the track log made, became too big and influenced somehow the unit's accuracy. Of course - I'm not sure at all that this is the reason.
Then I got my 3597 . So far I may say – I love this unit! But I said the same when I got my 3790, couple of years ago….
The gap between units could be seen immediately. 3597 is faster, softer in response, more advanced in any aspect.
The accuracy is perfect - 3 to 5 meters in driving conditions. It seems for me a bit unrealistic, but that are units readings. That accuracy was reached with same signal strength and same or less number of satellites. That is comparing accuracy of 3790 to 3597.
In tunnels 3597 loosing satellite signal too, but immediately after being out of it, the unit catch them again.
So far no complains, even may say that 3597 exceeds my expectations. Monday next long drive will follow, but I’m not expecting problems.
Will report when and if I get back my 3790.

To try to kill your unit is not so bad thing in the end of the day, if you have the support of Noeman experts & members.

As you [Only registered and activated users can see links. ] that I did my very best to "kill" my beloved unit and the results are:
1. I have no bluetooth
2. Due to new traffic soft no single traffic provider appears despite all of the except one were installed in Garmin factory.
3. Some other functions did not operate well, but soon or later I'll fix them all.

Do you have 37xx in About? If yes send me a pm, I probably can help.

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[Only registered and activated users can see links. ]You have to navigate to get to the good.

Is this still an urban myth or is it true? I noticed that when I converted my 3790 US to a 34xx, the accuracy got a little bit off. With the stock 3790 firmware, usually when I turn on a curve the GPS immediately follows, but with it converted to the 34xx it sometimes doesn't follow right away.

Well, yes and no. Depending on the GPS hw fitted to 3790 it seems. Some receivers handle the 34x0 fw better so it's the luck of the draw. My 2 converted units have reduced but acceptable accuracy. Other users haven't been so lucky. Mine are early production units, but that might not mean anything. Short answer, it's not a myth [but not such a big problem for some].

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Well, yes and no. Depending on the GPS hw fitted to 3790 it seems. Some receivers handle the 34x0 fw better so it's the luck of the draw. My 2 converted units have reduced but acceptable accuracy. Other users haven't been so lucky. Mine are early production units, but that might not mean anything. Short answer, it's not a myth [but not such a big problem for some].

Oh ok. Are you saying that there are different hw for different 3790's? What is the model of your 2 converted units?

The are at least two different GPS receivers in the 37x0 series so i'm told. Not at home at the moment, i'll see what i can find out and report what i can soon. Maybe someone will reply in the meantime.

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